为了对多个分布异构的数据源进行无缝访问必须解决数据源之间的语义异构。分析了三个层次的语义异构,即模式异构、上下文异构和个体异构,并重点给出了消除上下文异构和个体异构的解决方法。针对已有语义信息集成片面解决三个层次语义异构中的一种的现状,提出了一个语义信息集成的体系结构,能够全面解决三个层次的语义异构。
To access multiple distributed heterogenous data sources seamlessly, the semantic heterogeneity between data sources must be reconciled. Analyzed the three kinds of semantic heterogeneity including schema heterogeneity, context heterogeneity and individual heterogeneity and proposed corresponding solution. The existed semantic information integration solutions reconciled semantic heterogeneity partially, this paper constructed a semantic information integration architecture to resolve all of the three kinds of semantic heterogeneity completely.